[1]
Trushnikov Д. Н., Belenkiy В. Я., Shchavlev В. Е., Piskunov А. Л., and Lyalin А. Н., “Application of secondary-emission signal parameters for penetration control in electron-beam welding”, Интеллект. сист. произв., vol. 7, no. 1, pp. 175–181, Mar. 2012.